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Salt might be lurking in an unexpected place—your medications. A new study in the journal BMJ found that some common medications such as acetaminophen, ibuprofen, and aspirin made to dissolve in water contain high levels of sodium that exceed the recommended daily limits.

“There’s no legal regulation anywhere in the U.S. or the UK to limit the amount of sodium per tablet,” said Jacob George, MD, senior clinical lecturer and honorary consultant in clinical pharmacology at the University of Dundee in England. “The sodium levels in these medications should be clearly labeled on the packages.”

Researchers found the dissolvable form of acetaminophen (Tylenol) contained the most sodium: 427 milligrams per dose. If someone took the maximum amount allowed daily, they would be ingesting about 3,400 mg of sodium. The recommended daily amount of sodium is 2,000 mg, according to the USDA.

“We often tell patients that salt is hidden in foods,” said Merle Myerson, MD, director of the cardiovascular disease prevention and pre-exercise heart screening program at St. Luke's and Roosevelt Hospital in New York City. “Processed foods and fast foods have a lot of hidden salt. Here again, we’re seeing another source of hidden salt that may contribute to a person’s risk for hypertension.”

Cost and Concern of Early Sexual Activity Stop Parents From Vaccinating Kids Against HPV

Cost and concerns about heightened sexual activity are likely the main reasons parents aren’t vaccinating their kids against the human papillomavirus (HPV).

They found that "parents have a number of concerns including the mindset that 'my child isn't sexually active yet,' and many may hope that they will remain inactive for years to come," said study author Dawn Holman, a behavioral scientist at the CDC’s Division of Cancer Prevention and Control.

As far as cost, one dose of the vaccine can cost up to $130, and three doses are needed. The Affordable Care Act may help relieve some of the cost burden.

Experts say getting vaccinated in early childhood is important in order to build up antibodies against the virus before the child is sexually active.

Milestones as 25th World AIDS Day Approaches

The term Acquired Immune Deficiency Syndrome was introduced by the CDC in 1982. The Human Immunodeficiency Virus (HIV) was found to cause AIDS two years later. The first antiretroviral drug was approved in 1987.

A new cocktail of HIV drugs was introduced in 1995, and the following year HIV/AIDS researcher Dr. David Ho was named TIME magazine’s Man of the Year.

More than 7,700 people died from HIV disease in 2011, according to CDC statistics.

Foods That Lower "Bad" Cholesterol Levels

Beans: All types of beans from pinto to red to lima are good sources of soluble fiber that help lower the bad LDL cholesterol levels.

Red grapefruit: Just one grapefruit a month can lower LDL cholesterol by as much as 20 percent.

Red wine: The chemical resveratrol, found in the red grapes used to make red wine, has been shown to lower cholesterol and protect against coronary artery disease because of its antioxidant properties.